B 031 OPTIMIZATION OF ADVANCED WELL TYPE AND PERFORMANCE

The optimal deployment and operation of advanced (multilateral or “smart”) wells remains a challenge, particularly in light of geological uncertainty. In this paper we apply a genetic algorithm for the determination of optimal well type, location and trajectory. The ability of the method to determine the optimal well over multiple geological realizations under different risk attitudes is demonstrated. Next, a combined history match – valve optimization procedure is developed. The method allows for the continuous updating of the geological model using data from downhole sensors. We show that, for the example considered, the resulting production is nearly as much as that achieved using optimized valves with known geology, indicating the potential benefits of the overall approach.